<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>14_边框线和圆角</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }
        .container {
            width: 100%;
            height: 100vh;
            background-color: white;
            padding: 20px 50px;
            box-sizing: border-box;
        }
        .title {
            margin: 0 auto;
            height: 50px;
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: end;
        }
        .title :nth-child(1) {
            font-size: 30px;
            font-weight: bolder;
        }
        .title :nth-child(2) {
            color: #dd5b49;
            font-size: 20px;
            font-weight: bolder;
        }
        .form {
            margin-top: 50px;
        }
        .form_item {
            width: 100%;
            box-sizing: border-box;
            padding: 10px 30px ;
        }
        .form_item  input{
            width: 100%;
            height: 50px;
            border: none;
            border-bottom: 1px solid #dd5b49;
        }
        .btn_form {
            width: 100%;
            height: 60px;
            box-sizing: border-box;
            padding: 10px 30px ;
        }
        .btn_form button {
            width: 100%;
            height: 100%;
            color: white;
            background-color: #dd5b49;
            border-radius: 30px;
            border: none;
        }
    </style>
</head>
<body>
    <div class="container">
       <div class="title">
          <span>手机号登录</span>
          <span>账号登录</span>
       </div>
       <!-- 表单输入 -->
        <div class="form">
            <div class="form_item">
                <input placeholder="请输入手机号" type="text">
               </div>
               <div class="form_item">
                <input placeholder="请输入验证码" type="password"> <span>获取验证码</span>
               </div>
        </div>

        <div class="btn_form">
            <button>登录</button>
        </div>
      
    </div>
</body>
</html>